The City of Montreal says a boil-water advisory inMontreal'sWest Island has now been fully lifted,more than a week after tests found water in the Dollard-des-Ormeauxreservoir had been contaminated.

As of Friday, residents in DDOcouldsafely use their taps, but people in Pierrefonds-Roxborohad to wait until Sunday evening, when the city sent out a notice saying their water was once again safe to consume.

In a statement to CBC, city spokeswoman Audrey Gauthier said construction work was being done to seal and reinforce the reservoir last week. She says the renovations combined with heavy rains allowed contaminants to seep through a crack in the structure one that wasn't visible to workers.

Gauthier says the city found the crack and filled it, securedthe rest of the reservoir anddisinfected the water inside it. She says in the past week, the water quality has been tested more than it usually is in a whole month, with samples being taken almost every hour.

Gauthier says the city neededto havetwo full days of lab results in both areas demonstrating the water wassafe to drink again before theadvisory could belifted.

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Boil-water advisory fully lifted in Montreal's West Island - CBC.ca